Planetary gear drives have extremely high specific caring capacity. Great energy is being transmitted per gear drive mass unit. A part of this energy which is by friction being transferred to thermal energy, is heating the gear drive components. With prolonged intensive work, the quantity of released heat can be more significance greater than of the emitted one in surrounding. This article treats two issues. The one is concerning producing balance between mechanical losses and released heat. The estimate outcomes of the released heat are put in balance with the mechanical energy losses. The other issues is concerning solutions that can provide heat balance at the prolonged stationary gear work.
